Contractor on San Francisco permit records

Retrofit Technology LLC

License #1109970 (check status at CSLB) (909) 746-0275 3351 S. Riverside Av, Bloomington, CA

This page is built from public San Francisco permit records. It shows permits this firm pulled, not the quality of its work, and it isn't a recommendation. We don't check whether a contractor is currently licensed, bonded or insured. Verify that at the CSLB before you hire.

SF jobs on record

Jobs in the past year

Typical job size

—

Most recent job

6mo ago

Apr 24, 2026

What they work on

Heating & cooling3 jobs · 1 this year

Jobs per year

'17

'18

'19

'20

'21

'22

'23

'24

'25

'26

Most active in

Nob HillNorth BeachVisitacion Valley

Every permitted job

3 permits on record. Values are declared at filing.

Apr 24, 2026
No cost listed
Remove & replace(6) rooftop heat pump and (10) commom area heat pumps
555 North Point StNorth Beachissued#Heating & cooling
#PM20260424698
Jan 22, 2025
No cost listed
Remove existing failed boiler and install new.
333 Schwerin StVisitacion Valleycomplete#Heating & cooling
#PP20250123120
Mar 14, 2024
No cost listed
Work category: 5m; remove and replace (1) daikin water cooled chiller in the basement.
999 California StNob Hillcomplete#Heating & cooling
#PMW20240314333